Cutting device.



W. E. WILSON. CUTTING DEVICE.

APPLlcMloN mio suma. |1917.

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V'UNITED sTATEs PATENT oEEIoE.

WESLEY E. WILSON, OF AKRON, OHIO, ASSIGrNORl TO THE AKRON RUBBER MOLD & MACHINE COMPANY, OF AKRON, OHIO, A CORPORATION OF OHIO.

Application led September 13, 1917.

To 171 whom it may concern.'

Be it known that I. YVESLEY E. W'ILSON a citizen of the United States. residing at 751 Ardmore Ave.. Akron. in the county of Summit and State of Ohio. have invented new and useful Improvements in Cutting Device.. of which the following is a specification.

This invention relates to cutting devices primaril)7 adapted for severing continuous or aulmlar objects such as elastic vehicle tires into sections.

The object of the invention is to provide a machine for cutting either continuous or annular objects into sections and is especially adapted to be used in the production of segment shaped sections of an elastic vehicle tire. for use as samples for advertising purposes or t'or specimens of a tire on `which is displayed a trademark to comply with the statute requiring specii'nens of thel goods with the trmlennlrk thereon.

The invention contemplatesl a carriage on which is mounted a form. means for clamping the object on'the form. a rotary cutting tool which is Vadapted to sever the object into sections when the object carried by the forln mounted on the carriage is brought into olieratve engagement therewith.

'ith the foregoing and other objects in view. the invention consists in the novel construction. combination and arrangement of part.-l coustituting the invention to be hereina fter specifically described and illustrated in the accompanying drawings which form a part hereof wherein is shown the preferred embodiment of the invention, but it is to be understood that changes. variations and modifications can be resorted to which come within lthe .scope of the matter hereinafter claimed.

ln the drawings in which similar refereince numerals indicate like parts in the different figures,

'Figure 1 is a front elevation of a cutting device embodying the present invention.

Fig. 2 is a side elevation looking from the right in Fig. 1, and

Fig. 3 is a detail of part of the mechanism shown in Figs. 1 and 2.

Referring specifically to the drawings the reference numeral 1 denotes a standard providedwith a base 2 and preferably consisting of two right angularly positioned flanges 3 and 4 integrallyformed and provided with Specification of Letters Patent.

CUTTING DEVICE.

Patented Oct. 8, 1918.

Serial No. 191,173.

integral webs or braces 5 and 6. Extending upwardly and laterally from the web 5 are two separated arms 7 and 8 inthe outer ends of which are bearings 9 'and 10. Mounted rin the bearings 9 and l() is a shaft 11 bearing a pulley 12 adapted to receive a belt for rotating the shaft 11. Mounted on the front end of the shaft 11is a circular cutting knife or disk 13, which is held in position on the shaft 11 by means of a clamping bolt 14. Secured to the front face of the fiange 4 by means of a clampingr bolt is a hood or casing 15 inclosing the knife 13. This hood or casing is open at the lower portion and is ont of contact with the cutting disk or tool 13 and is provided at the top with an inlet 16 through which water may be supplied to the Aknife during the cutting operation which is especially useful where the knife is employed in cutting vulcanized rubber. The front face of the casing 15 is provided with -a centrally vdisposed notch 17 preferably V- shaped extending above the shaft 11 and which leaves space to permit the movement of the object to be severed into engagement with the cutting disk 13. Projecting from the front face ofthe flange l of the standard are two lugs 2() and 21 the outer ends of both of which are vertically apertured with `the axes of the apertures in vertical alinementl and in these apertures as bearings is mounted a nonrotatable shaft 22 on the upper end of which is a head23 bearing an integral brackct'24 having rack teeth 25 on one face thereof. The toothed face of the.

bracket 24 is vertically disposed and is in parallelism with the. axis of the shaft 22. Also integrally formed with the head 23 is a laterally-projecting arm 26 from which extends npwardly a form 27 provided en each side, near the lower portion of the member 27 with pairs of ears 28 and 29 respectively and extend-ing between the members of each pair of ears or pins 30 and 31 respectively. The. upper portion of the`form 27 is fashioned to constitute a. seat for the' interior of the object. to be severed or cut and if the object to be 'severed is a tire or tire Acasing the outline or outer face of the form 27 will preferably conform substantially to the formof the interior thereof. As illustrated in the drawings the device is adapted for severing the outer casings of double tube pneumatictirc into sections and hence the form 27 is fashionedy so as to readily 'receive an aol oiitcr tube or tire easing of a double tube pneumatic, tire when in its compressed condition. lhe. outer end of the arm 26 is provided with a bolt 33 constituting a pivot for an L-shaped lever comprising a long arm 31 and a short arm 35 preferably formed integral. The free end of the arm 35 bears a pivot pin 3C on which is mounted a coupling 37 to which is connected a flexible strap 38 which is adapted to extend between the pin 31 and the. side of the form 27 and from thence around the object on the form 27 and terminates in a -liook-shaped member 39 which is arranged to engage the pin 30. Fixedly secured to the lower end of the arm 34 is an aiin 40 provided with a pedal 41 for operating the L-shaped lever comprising the members 34 and 35. The arm 40 is provided with a projection 42 in the form of a dog or pawl. On the lower end of the shaft, S22 is a boss 43 from which extends an arcuatelv formed arm 44; the rear tace of which is provided with ratchet teeth 45 arranged to he engaged by the dorer or pawl 4.2 when the pedal l() is moved to its operative position. It may be pointed out that the arin 34 is capable of'considerable lateral adjust ment but the normal position of this arm is such as to cause engagement between the dog or pawl 42 and the teeth 45 of the arcuate arm 41 and hold the pedal L10 locked in its lower operative position and the paw] or dogr 42 on the pedal'40 is released from engagement with the teeth 45 of the arm 44 by giving to the arm 10 a slight lateral movement. On the front face of the Hange l of the standard 1 is a boss 46 in which is mounted a shaft 47 on which is a hand wheel 48 and also mounted on the shaft 47 is a pinion gear 49 so positioned as to'inteirnesh with the rack teeth on the bracket 2-1 so that when the hand wheel 48 is rotated the position of the shaft. 22 and its connected nicchanism is simultaneously shifted. Extending between the arms 26 and 31 is a coiled spring 50 for 'normally movingr the arm 40 in inoperative position which releases the strap'38 from its clamping operation on the object positioned on the form 27.

The operation of the device is as follows: If it is desired to out an annular object. such for instance as an outer casing of a double tube `pneumatic tire into segment shaped sections the'strap 39 is released from the pin 3() and thc casing is then laid on the form 2T and the hook 39 rcingfagcd with the pin :130. l`hc opcratoi' then presses down on the pedal 41 causing the strap tltlto clamp the object in position on the torni :27. This downward movenicnt of the pedal 4I causes the dog or pawl l2 to engage one of the teeth l5 on the arm il tor holdingr thc strap 38 in its operative clamping position. rThe cutting disk is usiiall \Y coiistaiitl)r rotating h v means ot' power applied to the pulley 12 and a supply ot water is furnished through the inlet 115 thereto. The operator then revolves the hand wheel 4.8 which through the engragi'eiiient of the pinion gear 49 with the tccth 25 of the bracket raises the shaft 2;) causing thc t'orm to move upwaidliY to living the object into cngagciiiciit with the cutting knife i3. A't'tci' thi` cut.- ting operai ion the hand wheel 4H is rcversc|v revolved lowering the shai't 22 ind its connected mechanism. The operator thcii rcleases the ari'n 40 and pawl 4;) troni engage-- ment with the teeth on the arcuate ai'iii il in order io release the strap 38 from thc clamping i'ij'icratioii after which the tire casing is shifted a desired distance and the operation is repeated,

I claim:

A cutting device embodying a supporting;r standard. a rotatable shaft mounted therein, a ciiifiilar cutting tool on said shaft` means to supply water to said cutting tool dui-imgr its rotation. a pair ot' lugs on said standard. a nonrotatalile shaft shiftablv mounted in said lugs as hearings. a head on said shaft. an article holding form on said head, a strap adapted to clamp an article on said form during the cutting operation one end ofwhicli is anchored to said head, an L- 'shaped lever carried by said head one end of'which is connected to the opposite end of said strap, a foot pedal connected with the opposite end of said lever; an arm provided with teeth on said shaft, a tooth on said.

lever` arranged to cooperate with said teeth for holding said lever in its operative position, and means for shitting said shaft and head toward and away from said cutting toolto bring;Y an article carried bv said forni into operative relation with said tool.

ln testimony whereof I have hereunto set my hand. l

lVESLEY E. VLSUN. 

